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Short Androgen Suppression and Radiation Dose Escalation in Prostate Cancer: 12-Year Results of EORTC Trial 22991 in Patients With Localized Intermediate-Risk Disease

M. Bolla, A. Neven, P. Maingon, C. Carrie, A. Boladeras, D. Andreopoulos, A. Engelen, S. Sundar, EM. van der Steen-Banasik, J. Armstrong, K. Peignaux-Casasnovas, J. Boustani, FG. Herrera, BR. Pieters, A. Slot, A. Bahl, CD. Scrase, D. Azria, J....

. 2021 ; 39 (27) : 3022-3033. [pub] 20210726

Jazyk angličtina Země Spojené státy americké

Typ dokumentu časopisecké články, práce podpořená grantem

Perzistentní odkaz   https://www.medvik.cz/link/bmc22003697

PURPOSE: The European Organisation for Research and Treatment of Cancer (EORTC) trial 22991 (NCT00021450) showed that 6 months of concomitant and adjuvant androgen suppression (AS) improves event- (EFS, Phoenix) and clinical disease-free survival (DFS) of intermediate- and high-risk localized prostatic carcinoma, treated by external-beam radiotherapy (EBRT) at 70-78 Gy. We report the long-term results in intermediate-risk patients treated with 74 or 78 Gy EBRT, as per current guidelines. PATIENT AND METHODS: Of 819 patients randomly assigned between EBRT or EBRT plus AS started on day 1 of EBRT, 481 entered with intermediate risk (International Union Against Cancer TNM 1997 cT1b-c or T2a with prostate-specific antigen (PSA) ≥ 10 ng/mL or Gleason ≤ 7 and PSA ≤ 20 ng/mL, N0M0) and had EBRT planned at 74 (342 patients, 71.1%) or 78 Gy (139 patients, 28.9%). We report the trial primary end point EFS, DFS, distant metastasis-free survival (DMFS), and overall survival (OS) by intention-to-treat stratified by EBRT dose at two-sided α = 5%. RESULTS: At a median follow-up of 12.2 years, 92 of 245 patients and 132 of 236 had EFS events in the EBRT plus AS and EBRT arm, respectively, mostly PSA relapse (48.7%) or death (45.1%). EBRT plus AS improved EFS and DFS (hazard ratio [HR] = 0.53; CI, 0.41 to 0.70; P < .001 and HR = 0.67; CI, 0.49 to 0.90; P = .008). At 10 years, DMFS was 79.3% (CI, 73.4 to 84.0) with EBRT plus AS and 72.7% (CI, 66.2 to 78.2) with EBRT (HR = 0.74; CI, 0.53 to 1.02; P = .065). With 140 deaths (EBRT plus AS: 64; EBRT: 76), 10-year OS was 80.0% (CI, 74.1 to 84.7) with EBRT plus AS and 74.3% (CI, 67.8 to 79.7) with EBRT, but not statistically significantly different (HR = 0.74; CI, 0.53 to 1.04; P = .082). CONCLUSION: Six months of concomitant and adjuvant AS statistically significantly improves EFS and DFS in intermediate-risk prostatic carcinoma, treated by irradiation at 74 or 78 Gy. The effects on OS and DMFS did not reach statistical significance.

Department of Radiation Oncology Amsterdam University Medical Centers University of Amsterdam Amsterdam the Netherlands

European Organization for Research and Treatment of Cancer Brussels Belgium

Institut du Cancer de Montpellier Université de Montpellier INSERM U1194 Montpellier France

Institute Verbeeten Tilburg the Netherlands

Ipswich Hospital National Health Services Trust Ipswich United Kingdom

Klinika Onkologie a Radioterapie Fakultni nemocnice Hradec Kralove Hradec Kralove Czech Republic

Nottingham University Hospitals NHS Trust City Hospital Consultant Medical Oncologist Nottingham United Kingdom

Patrick G Johnston Centre for Cancer Research Queen's University Belfast Belfast Ireland

Radiation Oncology and Immuno Oncology Service University Hospital of Lausanne Lausanne Switzerland

Radiation Oncology Department All Ireland Cooperative Oncology Research Group St Luke's Hospital Dublin Ireland

Radiation Oncology Department Catalan Institute of Oncology University Hospital Germans Trias 1 Pujol Badalona Barcelona Catalonia Spain

Radiotherapeutisch Instituut Friesland Leeuwarden the Netherlands

Radiotherapiegroep Arnhem Arnhem the Netherlands

Radiotherapy Department Bank of Cyprus Oncology Centre Nicosia Cyprus

Radiotherapy Department Georges Francois Leclerc Centre Dijon France

Radiotherapy Department Grenoble Grenoble Alpes University Centre Hospitalier Universitaire de Grenoble Grenoble France

Radiotherapy Department Leon Bérard Center Lyon France

Radiotherapy Department University Hospital of Besancon Jean Minjoz Hospital Besancon France

Radiotherapy Department University of Groningen University Medical Center Groningen Groningen the Netherlands

Sorbonne University APHP Sorbonne University La Pitié Salpêtrière Paris France

University Hospitals Bristol National Health Service Foundation Trust Bristol Haematology and Oncology Centre Bristol Avon United Kingdom

Citace poskytuje Crossref.org

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